OOPS “Agency FB” is the EXACT match to the hallicrafters font.

NOT Agency SB

knobtwiddler

OOPS “Agency FB” is the EXACT match to the hallicrafters font.

NOT Agency SB

knobtwiddler

"Ron" wrote in message
...

Hi
Yes I had problems with both the setting of the dial and the tracking
on Band 4 I think you have to accept a little variance but I'm very
pleased with its performance and have been using it on 40mtrs CW
alongside my Home Brew QRP CW Tx.


I got my S-40A in perfect band 4 alignment at 2 points (17 and 34 Mc), but
it wasn't easy. I had to remove the band 4 oscillator coil and spread the
turns. Actually, I ended up rewinding the coil because I messed up the
original. I overworked the coil because I didn't realize the importance of
lead dress on this radio, even at 17 Mc. There's a longish wire coming from
the bandswitch which should be routed under the capacitor shelf on the coil
form. Routing it over the top of the form cost me about 250 Kc. That's
about half of the range from the tuning slug.

If you don't get enough range with the ferrite slug, the radio books say you
can try a brass slug. I didn't have a brass slug, and I don't have the
brass rod to make one. In one of my experiments, I coiled some 16 gauge
copper wire around the shank of a phillips head screwdriver, and threaded
the coil into the form. If you've ever worked with Heli-Coil thread
inserts, you can picture what I did. The copper coil worked fine, but I got
the radio aligned with the ferrite slug, once I rewound the coil for a
little less inductance.

Also, good clean connections at the bandswitch and the solder joints are
important. Band 4 is a high C low L circuit, and should generate a fair
amount of current in the LC tank assuming a reasonable Q.
You can clean the bandswitch better if you remove the two screws which hold
the witch detent in place. You can then rock the switch past the postition
the contacts stop for band 4. This will work any contact cleaner in better,
and work out the crud which normally builds up where the switch dead ends.


It's strange this radio goes into the low VHF band. I think Hallicrafters
designed it with the experimental Apex radio band in mind, which ran from
about 40 to 45 Mc.

Frank Dresser

"Ron" wrote in message
...

Hi
Yes I had problems with both the setting of the dial and the tracking
on Band 4 I think you have to accept a little variance but I'm very
pleased with its performance and have been using it on 40mtrs CW
alongside my Home Brew QRP CW Tx.


I got my S-40A in perfect band 4 alignment at 2 points (17 and 34 Mc), but
it wasn't easy. I had to remove the band 4 oscillator coil and spread the
turns. Actually, I ended up rewinding the coil because I messed up the
original. I overworked the coil because I didn't realize the importance of
lead dress on this radio, even at 17 Mc. There's a longish wire coming from
the bandswitch which should be routed under the capacitor shelf on the coil
form. Routing it over the top of the form cost me about 250 Kc. That's
about half of the range from the tuning slug.

If you don't get enough range with the ferrite slug, the radio books say you
can try a brass slug. I didn't have a brass slug, and I don't have the
brass rod to make one. In one of my experiments, I coiled some 16 gauge
copper wire around the shank of a phillips head screwdriver, and threaded
the coil into the form. If you've ever worked with Heli-Coil thread
inserts, you can picture what I did. The copper coil worked fine, but I got
the radio aligned with the ferrite slug, once I rewound the coil for a
little less inductance.

Also, good clean connections at the bandswitch and the solder joints are
important. Band 4 is a high C low L circuit, and should generate a fair
amount of current in the LC tank assuming a reasonable Q.
You can clean the bandswitch better if you remove the two screws which hold
the witch detent in place. You can then rock the switch past the postition
the contacts stop for band 4. This will work any contact cleaner in better,
and work out the crud which normally builds up where the switch dead ends.


It's strange this radio goes into the low VHF band. I think Hallicrafters
designed it with the experimental Apex radio band in mind, which ran from
about 40 to 45 Mc.

Frank Dresser

Hi
Yes I had problems with both the setting of the dial and the tracking
on Band 4 I think you have to accept a little variance but I'm very
pleased with its performance and have been using it on 40mtrs CW
alongside my Home Brew QRP CW Tx.

Re The Transfers well in my searches I came across this

http://www.lazertran.com/

If you read the Ink jet one it appears that you can print a design on
this paper which become waterproof on drying and can then be cut
out soaked and wet slide transfered on to any surface including paint
or metal!! so you could I assume take a close up digi photo of any
logo or decal, clean it up and print it ready for use, nice little
niche market hi!!!
thanks from Ron...

On 10 Oct 2003 17:50:17 GMT, donutbandit wrote:

(Ron) wrote in
:

Are there any transfers or refurb material available
I'd love to respray it but don't want to lose the original
transfers or logo, any help very welcome


You won't find any specific to the S-77.

(Ron) wrote in
:

Hi
This looks like a sensible news group! who but sensible people
would want to repair and play with Old Knackered Radios )
Being a lonely Brit trying to refurbish an old American Radio
I'm a bit stuck, I have repaired the old girl and it works very
well after sitting in a garage for many years as a home for
spiders, But I can't seem to align it correctly in as much as
I can't get the osc to track the dial reading and keep it in
good spec across the band? also I'm a bit worried about the
bandspread dial, it reads 100 with the tuning cap fully in
this means as you go up from 0 to 100 you are going down in
frequency? is this right? or has someone strung the dial cord
incorrectly? do I align it with the bandspead cap fully meshed
or not? I could really do with the alignment instructions has
anyone got them out there? I've looked for a manual but they
either want lots of $ (whatever they are ) or the ones that
are available don't have the circuit or alignment details (
Also Are there any transfers or refurb material available
I'd love to respray it but don't want to lose the original
transfers or logo, any help very welcome
from Ron G3YUH



I recently aligned my S-77 using the instruction from the BAMA site. Not
hard at all.

Keep in mind, very important - make sure that the first thing you check is
the range of the tuning dial. If this is off (mine was) it can cause all
kinds of trouble. There are index marks at each end to set it's travel.

I was able to get all bands quite close except for the high one. It tracks
fine at low end, but above 30 MHz it's off. I messed with it awhile and let
well enough alone. Who listens above 30 MHz anyway? I set it to track
correctly on 19 and 16 meters.

(Ron) wrote in
:

Are there any transfers or refurb material available
I'd love to respray it but don't want to lose the original
transfers or logo, any help very welcome


You won't find any specific to the S-77.